Perhaps you should try some spelling variations:
"coder coding xgboost algorithm pagerank" » "coder coding xgboost algoritmo pagerank" (Expand search), "coder boosting xgboost algorithm pagerank" (Expand search), "modern coding xgboost algorithm pagerank" (Expand search), "color coding xgboost algorithm pagerank" (Expand search), "odor coding xgboost algorithm pagerank" (Expand search)
"api pythons python python programming" » "api pitons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pythons piton python programming" (Expand search), "api pythons pitons python programming" (Expand search), "api pythons pytm python programming" (Expand search), "api python python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coding xgboost algorithm pagerank") OR ("api pythons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding xgboost algorithm pagerank\") OR (\"api pythons python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding xgboost algorithm pagerank ) OR ( api pythons python python programming ))*.